图片预览示例

<div>
        <input type="file" id="myFile" accept="image/*"/><br/>
        <img id="imgPreview" style="width: 150px;height:150px;" alt="图片预览"/>
    </div>

    <script src="~/Scripts/jquery-1.8.2.min.js"></script>
    <script type="text/javascript">
        $(function() {
            //文件预览
            $("#myFile").change(function () {
                var file = this.files[0];
                if (this.files && file) {
                    var reader = new FileReader();
                    reader.onload = function (e) {
                        $("#imgPreview").attr(‘src‘, e.target.result);
                    }
                    reader.readAsDataURL(file);
                }
            });
        });
    </script>